Optimization of KCS resistance performance in regular head waves
A study is conducted to optimize the KCS's hull design in regular head waves.The transformation of the hull lines is achieved using the radial basis function method.The hydrodynamic performance solver in SHIPFLOW,employing the fully nonlinear time-domain boundary element method,is utilized to predict the resistance.To reduce the computational resources required for hydrodynamic performance calculations,Latin hypercube sampling method and Kriging approxima-tion model are used.Furthermore,multi-island genetic algorithm was integrated to reduce the resistance in regular head waves with a wavelength equivalent to 1.15 times of the ship's length.The results of the calculations show a 4.48％reduc-tion in the total resistance of the optimized ship,along with an 18.08％decrease in the added resistance coefficient as com-pared to the original ship.
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